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Blue jay: Difference between revisions
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== Reproduction == | == Reproduction == | ||
Blue Jays have only one mate for their entire life. [http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html] Mating usually starts in May and ends in late summer or early fall. A group of males will follow a female, bobbing their heads up and down, trying to show off. The female chooses one of them to be her mate. [http://www.wild-bird-watching.com/Blue_Jay.html] | Blue Jays have only one mate for their entire life. [http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html] Mating usually starts in May and ends in late summer or early fall. A group of males will follow a female, bobbing their heads up and down, trying to show off. The female chooses one of them to be her mate. [http://www.wild-bird-watching.com/Blue_Jay.html] Afterwards, the male will provide for his mate by finding food for her and getting suitable twigs for their future nest. [http://www.birdhouses101.com/blue-jay-Nesting.asp] | ||
[http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html]They build their nests in trees or shrubs about 8-30 feet off the ground using twigs, bark, weeds, feathers, grass, roots, and whatever else they can find. They lay about 3-7 blue-green eggs at a time. [http://www.enchantedlearning.com/subjects/birds/printouts/Bluejayprintout.shtml] They eggs can be a variety of glossy colors like pink, blue, green, or olive with brown or purple speckles. [http://www.all-birds.com/Blue-Jay.htm] | [http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html]They build their nests in trees or shrubs about 8-30 feet off the ground using twigs, bark, weeds, feathers, grass, roots, and whatever else they can find. They have also been known to have something white on the outside of the nest. It can be a candy wrapper, piece of bark, a paper towel they've found, or a white leaf. [http://www.birdhouses101.com/blue-jay-Nesting.asp] | ||
After the eggs are layed, they incubated | |||
They lay about 3-7 blue-green eggs at a time. [http://www.enchantedlearning.com/subjects/birds/printouts/Bluejayprintout.shtml] They eggs can be a variety of glossy colors like pink, blue, green, or olive with brown or purple speckles. [http://www.all-birds.com/Blue-Jay.htm] | |||
After the eggs are layed, they are incubated mainly by the mother for 18 days. The mothers shed the feathers off a part of their stomache called the incubation patch. The area is filled with small blood vessels and provides heat for the eggs or young fledges. [http://www.birdhouses101.com/blue-jay-facts.asp] The baby birds are closely watched by their parents until they leave their nest at about 2 months old. The fledgings can feed themselves at 3 weeks old, but before that are fed by the parents. | |||
[http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html] The young birds look close to the adults except that they are lighter in color: their blue feathers are more gray and their black feathers are more brown. [http://www.all-birds.com/Blue-Jay.htm] They can start mating withing the first year of their birth. The average lifespan for living in the wild is about 17 years. [http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html] | [http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html] The young birds look close to the adults except that they are lighter in color: their blue feathers are more gray and their black feathers are more brown. [http://www.all-birds.com/Blue-Jay.htm] They can start mating withing the first year of their birth. The average lifespan for living in the wild is about 17 years. [http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html] | ||
